Supporting leg for a serving tray



FIG. 1 is an end elevational view of a supporting leg for a serving tray, showing my new design, the opposite end being a mirror image thereof;

FIG. 2 is a left side elevational view;

FIG. 3 is a right side elevational view; and,

FIG. 4 is a bottom perspective view thereof.

The top and bottom of the support legs are plain and unadorned. The broken lines in FIG. 4 are for environmental purposes only and form no part of the claimed design. 

The ornamental design for a supporting leg for a serving tray, as shown and described. 